Marion County vs Union County

A side-by-side comparison of Marion County and Union County: population, income, housing, and more.

Marion County and Union County are counties in Ohio. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Union County has the higher population (65,293 vs 65,145 in Marion County). Union County has the higher median household income ($109,506 vs $57,306 in Marion County). Union County has the higher median home value ($306,600 vs $146,200 in Marion County).

Population, income & housing

	Marion County	Union County
Population	65,145	65,293
Median age	40.5 yrs	38.1 yrs
Median household income	$57,306	$109,506
Median home value	$146,200	$306,600
Median gross rent	$850	$1,188
Housing units	27,381	24,298
Homeownership rate	67.8%	79.4%
Bachelor's degree or higher	13.7%	39.1%
Unemployment rate	6.0%	2.4%

Trends (ACS 5-year, 2019–2023)

	Marion County	Union County
Population	65,299 → 65,145 (-0.2%)	56,707 → 65,293 (+15.1%)
Median household income	$47,498 → $57,306 (+20.6%)	$86,715 → $109,506 (+26.3%)
Median home value	$100,800 → $146,200 (+45.0%)	$203,800 → $306,600 (+50.4%)
Median gross rent	$731 → $850 (+16.3%)	$982 → $1,188 (+21.0%)

Marion County

Population

65,29965,145

Median household income

$47,498$57,306

Median home value

$100,800$146,200

Median gross rent

$731$850

Union County

Population

56,70765,293

Median household income

$86,715$109,506

Median home value

$203,800$306,600

Median gross rent

$982$1,188

Age & race/ethnicity

Age distribution (share)

	Marion County	Union County
Under 5	5.6%	6.2%
5 to 17	15.7%	18.1%
18 to 24	8.2%	7.6%
25 to 34	13.3%	13.1%
35 to 44	12.4%	15.7%
45 to 54	13.2%	14.0%
55 to 64	13.3%	12.3%
65 to 74	11.3%	8.1%
75 and over	7.1%	4.9%

Race & ethnicity (share)

	Marion County	Union County
White (non-Hispanic)	86.6%	85.9%
Black or African American	4.9%	2.4%
American Indian & Alaska Native	0.0%	0.1%
Asian	0.6%	4.8%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.5%	0.4%
Two or more races	4.2%	3.5%
Hispanic or Latino	3.1%	2.9%

Educational attainment (age 25+)

Share of adults 25+

	Marion County	Union County
No high school diploma	10.9%	4.8%
High school graduate	43.8%	30.1%
Some college or associate's	31.5%	26.0%
Bachelor's degree	9.4%	25.3%
Graduate or professional degree	4.3%	13.8%

Commute to work

How workers get to work (share)

	Marion County	Union County
Drove alone	81.9%	71.8%
Carpooled	9.6%	5.8%
Public transit	0.6%	0.6%
Walked	0.9%	0.5%
Bicycle	0.0%	0.1%
Worked from home	5.9%	19.9%
Other means	1.1%	1.3%

Housing

Units in structure (share)

	Marion County	Union County
1-unit, detached	77.4%	80.6%
1-unit, attached	1.9%	3.6%
2 to 4 units	6.7%	5.6%
5 to 19 units	5.9%	5.0%
20 or more units	3.6%	1.5%
Mobile home & other	4.6%	3.7%

Poverty & households

	Marion County	Union County
Poverty rate	15.3%	5.1%
Average household size	2.44	2.67
Mean commute (minutes)	24	26
Median year structure built	1963	1995